Life Cycles Lessons 1–2 Copyright © by Harcourt, Inc. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Requests for permission to make copies of any part of the work should be addressed to School Permissions and Copyrights, Harcourt, Inc., 6277 Sea Harbor Drive, Orlando, Florida 32887-6777. Fax: 407-345-2418. HARCOURT and the Harcourt Logo are trademarks of Harcourt, Inc., registered in the United States of America and/or other jurisdictions. Printed in the United States of America ISBN-13: 978-0-15-349154-2 ISBN-10: 0-15-349154-X 1 2 3 4 5 6 7 8 9 10 179 15 14 13 12 11 10 09 08 07 06 If you have received these materials as examination copies free of charge, Harcourt School Publishers retains title to the materials and they may not be resold. Resale of examination copies is strictly prohibited and is illegal. Possession of this publication in print format does not entitle users to convert this publication, or any portion of it, into electronic format. Lif e Cycles Lessons 1–2 Life Cycle of a Cat . . . . . . . . . .2 Life Cycle of a Frog . . . . . . . . .4 Life Cycle of a Butterfly. . . . . .6 Life Cycle of a Grasshopper . .8 Animals Are Like Their Parents . . . . . . . . . . .10 Animals Are Different from Their Parents . . . . . . .12 More Animals, More Differences . . . . . . . .14 Animals and the Environment. . . . . . . . .15 Lif e Cycle of a Cat All animals have a life cycle. A life cycle is all the times of the animal’s life. This is a cat’s life cycle. kitten about 3 weeks old adult cat and kittens 2 A kitten grows to be an adult. The adult has its own young. A new life cycle begins. young cat about 6 months old adult cat 3 Lif e Cycle of a Frog This is a frog’s life cycle. Mother frogs lay eggs. Young frogs, or tadpoles, hatch from